steamlink.sh

#!/bin/bash
#
# Script to launch the Steam Link app on Raspberry Pi

TOP=$(cd "$(dirname "$0")" && pwd)

# Set up the temporary directory
export TMPDIR="$TOP/.tmp"
rm -rf "$TMPDIR"
mkdir -p "$TMPDIR"

# Restore the display when we're done
cleanup()
{
        pulseaudio -k
        kill $CEC_PID 2>/dev/null
        screenblank -k
}
trap cleanup 2 3 15

# stop kodi
if [ ! -z "$(pidof kodi.bin)" ]; then
        echo 'stopping kodi'
        systemctl stop kodi
fi

# setup udev
#if [ ! -f /lib/udev/rules.d/60-steam-input.rules ]; then
if [ ! -f /lib/udev/rules.d/56-steamlink.rules ]; then
        echo 'adding udev overlay'
        mount -t overlay overlay -o lowerdir=/lib/udev/rules.d,upperdir=/storage/steamlink/udev/rules.d/,workdir=/storage/steamlink/overlay_work /lib/udev/rules.d
        udevadm trigger
fi

# Run the shell application and launch streaming
QT_VERSION=5.14.1
export HOME="/storage"
export PATH="$TOP/bin:$PATH"
export QTDIR="$TOP/Qt-$QT_VERSION"
export QT_PLUGIN_PATH="$QTDIR/plugins"
#export QT_QPA_PLATFORM="eglfs"
#export QT_QPA_PLATFORM_PLUGIN_PATH="$QT_PLUGIN_PATH/platforms"
export LD_LIBRARY_PATH="$TOP/lib:$QTDIR/lib:$LD_LIBRARY_PATH"
export SDL_GAMECONTROLLERCONFIG_FILE="${XDG_DATA_HOME:-$HOME/.local/share}/Valve Corporation/SteamLink/controller_map.txt"
#export SDL_GAMECONTROLLERCONFIG_FILE="$TOP/SteamLinkcontroller_map.txt"

export QT_QPA_PLATFORM="eglfs"
#elif [ -f /opt/vc/lib/libbrcmGLESv2.so ]; then         # from steam launcher
export QT_QPA_EGLFS_INTEGRATION=eglfs_brcm
export QT_QPA_EGLFS_PRELOAD="/opt/vc/lib/libbrcmGLESv2.so"
#
export QT_QPA_EGLFS_FORCE888=1
export QT_QPA_EGLFS_ALWAYS_SET_MODE=1
#export QT_DEBUG_PLUGINS=1

echo 'starting pulseaudio'
pulseaudio -k 2>/dev/null
cat /etc/pulse/default.pa | sed 's/^\(load-module module-udev-detect\|load-module module-detect\)/\1 tsched=0/' > /storage/steamlink/pulse_default.pa
pulseaudio -D -n -F "$TOP/pulse_default.pa"

echo 'starting cec'
cec-client </dev/null | steamlink-cec &
CEC_PID="$(jobs -p) $!"

echo 'starting steamlink'
while true; do
        LD_PRELOAD=$QT_QPA_EGLFS_PRELOAD shell "$@"

        # See if the shell wanted to launch anything
        cmdline_file="$TMPDIR/launch_cmdline.txt"
        if [ -f "$cmdline_file" ]; then
                cmd=`cat "$cmdline_file"`
                eval $cmd
                rm -f "$cmdline_file"
        else
                # We're all done...
                break
        fi
done

cleanup

exit 0